We have had them 9 days now and they are very happy. BUT one of the hens is laying soft, squishy shell-less eggs - all she does is lay down all day, maybe walk around for a bit to eat, go nest in the nesting box a few times per day - I think she has a problem. The man said we could swap her, but she is sooo beautiful and has such a lovely, warm personality. Don't know what could be the problem. Any advice. (they have oyster shells and baked crushed egg shells daily - so it's not a calcium problem)